Zhi bought 18 tickets for games at a fair. each game requires 3 tickets. zhi wrote the expression 18 – 3g to find the number of tickets she has left after playing g games. diego correctly wrote another expression, 3(6 – g), that will also find the number of tickets zhi has left after playing g games. use the drop-down menus to explain what each part of zhi's and diego's expressions mean.